Last year in a blog of ours on the future of genome sequencing we referenced a July appeals court ruling that protected Utah's Myriad Genetics' patent on two genes known to be indicators of breast cancer risk. Now, in a recent Supreme Court ruling on that same case, the previous ruling has been overturned and the case returned to the lower court for rehearing. This decision follows another important high court ruling on the patentability of genes: Mayo vs. Prometheus Labs (San Diego), which also just ruled against a company's right to hold patents on human genes, and which was quoted as a precedent in the latest Myriad judgement.